// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: Operator x-- returns ToNumber(x)
es5id: 11.3.2_A4_T4
description: If Type(x) is undefined or null
---*/

//CHECK#1
function Test() {
    var x; 
    var y = x--;
    if (isNaN(y) !== true) {
      throw new Test262Error('#1: var x; var y = x--; y === Not-a-Number. Actual: ' + (y));
    }

//CHECK#2
    var x = null;
    var y = x--;
    if (y !== 0) {
      throw new Test262Error('#2: var x = null; var y = x--; y === 0. Actual: ' + (y));
    }
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
